#30 The Risen Empire by Scott Westerfeld

The book is set up in a future with rival empires fighting out planet by planet. One empire has made life after death possible in your body while the other has augmented the human body and makes planet wide Artificial Intelligences. This is part one of a series so nothing is really wrapped up in the end but you really only see one of the Empires and you only get a glimpse inside of the other side. I really enjoyed the book.